- Feb 28, 1999
These questions may have been asked a hundred time before, but please humor me. If I understand the term toughness, it would be the opposite of brittleness. Is there a general trend in which, as steel corrosian resistance increases, which appears to be achieved by ramping up the Cr content, that toughness decreases? Looking at Joe T.'s great discussion of the characteristics of various steels, the Carbon steels are the tough guys, far more so than the stainless types. Recent posts suggest that the particle steels may also lack toughness. I'm assuming the brittleness is produced by the presense of Cr. Can someone take a stab at describing what's going on at the molecular level (in the matrix) which makes the stainless steels generally more brittle?